you have good armament!! that shotgun with the 6 P (it seems) and the tailcap from Tac-Star should do the trick if you need light, but to add a laser to the barrel you will be better off with this mount (the tri mount)
Then you can attach and detach your laser and light at will.
The Hi Point will be happy wirh your combo laser and light (a Streamlight M-6 ??)
Good thing your Range is near, mine is 8 miles away.